Chemistry Crossword

2. Element that has both metallic and non-metallic properties
9. Absorbs heat
10. The ability of a substance to dissolve into another
12. When a gas changes to a solid
13. change When a substance changes state but its composition stays the same.
15. The most stable and nonreactive elements in the periodic table
16. table A table of the chemical elements known by humans
17. The ability of a substance to conduct electricity or heat
18. The temperature in which a substance changes from a solid to a liquid
19. characteristics used to describe a substance or material
21. Dull, brittle element that does not conduct electricity
23. Shiny, malleable, ductile element that conducts electricity

1. A pure substance made up of one type of particle and cannot be broken down
3. Fundamental principle that states that energy cannot be created or destroyed, only rearranged.
4. compound Formed when atoms transfer electrons to or from other atoms
5. A substance's resistance to scratches
6. The amount of mass in a given volume of a substance
7. The fourth state of matter
8. number The number of protons in the nucleus of an atom
11. The temperature in which a substance changes from a liquid to a gas
13. properties Used to identify and classify matter
14. When a solid changes to a gas
18. Anything that has mass and occupies space
20. Releases heat
22. mass The average mass of an atom of an element